Description: history diagrams within the GridMonitor GUI show no values for a particular parameter, but errors like NOTE: no data for 'memfree'.

Verify that the collector is configured to save the reported parameter to the database. For example, to save the memfree parameter periodically to the database, an entry like

    parameter("cluster/*/hosts/*",
      …
      memfree = {
        save_history = true,
        poll = 600
      }
      …
      

must be present in the configuration file /etc/pscollect/cluster.conf. How to configure these parameters is described in the section called “Configuring the collector – step 9”.